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USPTO Data Jan 1 1976 - Dec 30 2025
2 Patents
#1,507 in Houston, TX
#6,135 in Texas
#92,642 in US
Drilltec Patents & Technologies Corporation
Forward Citations = 5
4 inventors:
Houston, TX, United States of America
Drilltec Patents & Technologies Corporation
CIPO Patents = 2
EPO Patents = 2
Trademarks = 4
Forward Citations = 5
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4 inventors (with patents filed for the assignee):
David W Clem (2 out of 6 patents)
Yasuhiro Yamamoto (1 out of 122 patents)
Bryan C Baker (1 out of 6 patents)
4. Jeffrey D Lendermon (1 out of 1 patent)
5. Shigeo Nagasaku (19 patents)
6. Yasuhiro Yamamoto (10 patents)
7. Nagasaku Shigeo (0 patent)
8. Yamamoto Yasuhiro (0 patent)
2 patents:
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2 patents (CIPO):
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2 patents (EPO):
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